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A message that you sent could not be delivered to one or more of its
recipients. This is a permanent error. The following address(es) failed:

  bm.enterprises@bos.co.za
    host iprise-mx-2.interprise.za.net [196.41.30.122]
    SMTP error from remote mail server after RCPT TO:<bm.enterprises@bos.co.za>:
    550 5.1.1 <bm.enterprises@bos.co.za>... User unknown
  blueplatcrush@lantic.net
    host mx.inbound.vox.co.za [41.193.119.123]
    SMTP error from remote mail server after initial connection:
    550 5.5.0 Not allowed.
  bluecatkashmir1@hotmail.com
    host hotmail-com.olc.protection.outlook.com [104.47.56.33]
    SMTP error from remote mail server after RCPT TO:<bluecatkashmir1@hotmail.com>:
    550 5.5.0 Requested action not taken: mailbox unavailable (S2017062302). [DM3NAM02FT061.eop-nam02.prod.protection.outlook.com]
  bmabena@classicmail.co.za
    host mx.wmi2.net [62.210.78.128]
    SMTP error from remote mail server after RCPT TO:<bmabena@classicmail.co.za>:
    550 5.1.1 <bmabena@classicmail.co.za>: Recipient address rejected:
    User unknown in virtual mailbox table
  bluesc@webmail.co.za
    host mx.wmi2.net [62.210.78.128]
    SMTP error from remote mail server after RCPT TO:<bluesc@webmail.co.za>:
    550 5.1.1 <bluesc@webmail.co.za>: Recipient address rejected:
    User unknown in virtual mailbox table
  blueriver@webmail.co.za
    host mx.wmi2.net [62.210.78.128]
    SMTP error from remote mail server after RCPT TO:<blueriver@webmail.co.za>:
    550 5.1.1 <blueriver@webmail.co.za>: Recipient address rejected:
    User unknown in virtual mailbox table
  blueblaze@webmail.co.za
    host mx.wmi2.net [62.210.78.128]
    SMTP error from remote mail server after RCPT TO:<blueblaze@webmail.co.za>:
    550 5.1.1 <blueblaze@webmail.co.za>: Recipient address rejected:
    User unknown in virtual mailbox table
  blue@gds.co.za
    host mail.gds.co.za [196.41.127.99]
    SMTP error from remote mail server after RCPT TO:<blue@gds.co.za>:
    550 No such person at this address."